The OMNIWeb-Plus pages for the Helios 1 and 2 E6 data at
http://omniweb.sci.gsfc.nasa.gov/ftpbrowser/helios1_e6_1hr.html
and at
http://omniweb.sci.gsfc.nasa.gov/ftpbrowser/helios2_e6_1hr.html

The Helios E6 data accessed via this pages have been
reorganized relative to the original data set described at
and ftp-accessible from
ftp://spdf.gsfc.nasa.gov/pub/data/helios/helios1/particle/e6_kunow/

The original data had "blocks" of data such that printed lines
had 10 "hourly" "records," each of which had start and stop times
and 13 pairs of fluxes and associated uncertainties.  The records
were mostly, but not totally, sorted by start time.  The duration
between start and stop times for a given record was most likely
60 minutes, but could be more or less.

Our new version has one record per printed line, has start time and
start-stop duration rather than start and stop times, and is strictly
sorted by start time.  Fluxes and uncertainties have been divided
by 10**4 to recast units from 1/m**2 to 1/cm**2.  Otherwise we have
not changed values of fluxes or uncertainties, nor the variable
durations of records.  Our new fill value is 9.9999e+004, 
replacing the original -0.9999E+04.